undef

s1a-iw-grd-vv-20200907t092414-20200907t092439-034251-03faed-001_filter

s1a-iw-grd-vh-20200907t092414-20200907t092439-034251-03faed-002_filter

s1a-iw-grd-vh-20200907t092414-20200907t092439-034251-03faed-002_winddir

s1a-iw-grd-vv-20200907t092414-20200907t092439-034251-03faed-001_winddir